diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-09-28 12:43:19 +0200 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2018-10-30 21:14:43 -0300 |
| commit | de2e68c902f7b6e438b0fa3cfedd74a06a20704f (patch) | |
| tree | 6f4495f4137d678a0fe8213847eeb6b1923e843e /target/i386/cpu.c | |
| parent | a2e002ff7913ce93aa0f7dbedd2123dce5f1a9cd (diff) | |
i386: correct cpu_x86_cpuid(0xd)
Intel SDM says for CPUID function 0DH, sub-function 0:
| • ECX enumerates the size (in bytes) required by the XSAVE instruction for an
| XSAVE area containing all the user state components supported by this
| processor.
| • EBX enumerates the size (in bytes) required by the XSAVE instruction for an
| XSAVE area containing all the user state components corresponding to bits
| currently set in XCR0.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Message-Id: <20180928104319.3296-1-bigeasy@linutronix.de>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'target/i386/cpu.c')
| -rw-r--r-- | target/i386/cpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 1469a1be01..fe7c963e5e 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -4178,7 +4178,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, *ecx = xsave_area_size(x86_cpu_xsave_components(cpu)); *eax = env->features[FEAT_XSAVE_COMP_LO]; *edx = env->features[FEAT_XSAVE_COMP_HI]; - *ebx = *ecx; + *ebx = xsave_area_size(env->xcr0); } else if (count == 1) { *eax = env->features[FEAT_XSAVE]; } else if (count < ARRAY_SIZE(x86_ext_save_areas)) { |